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2 Sheets-Sheet 1.

L.E.BRAGKNBY. MEANS FOR COUPLING 0R UNGOUPLING OIL WELL TOOLS. No. 586,527.

Patented July 13,1897.-

Tu; uuruns mzns co. PHOTO-UT (No Model.)

2 Sheetssheet 2. L. E. BRACKNEY. MEANS FOR COUPLING 0R UNGOUPLING OIL WELL TOOLS.

Patented July 13,1897.

UNITED STATES PATENT OFFICE.

LAYVSON E. BRAOKNEY, OF BUTLER, PENNSYLVANIA, ASSIGNOR OF ONE- FOURTH TO JOHN E. BYERS, OF SAME PLACE.

MEANS FOR COUPLING OR UNCOUPLING OIL-WELL TOOLS.

SPECIFICATION forming part of Letters Patent NO. 586,527, dated July 13, 1897. Application filed December 5, 1896, Serial No. 614,654. (No model.)

T 0 all whont it may concern.-

Be it known that I, LAWSON E. BRACKNEY, a citizen of the United States, residing at Butler, in the county of Butler and State of Penn sylvania, have invented certain new and useful Improvements in Means for Coupling or Uncoupling Oil-lVell Tools; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to means for coupling and uncoupling the sections of a drill-rod for drilling oil or Artesian wells, which sections are connected by screw-threaded couplings, and is also adapted for coupling and uncoupling the sections of tubing or casing used in connection with such wells.

The invention will be fully disclosed in the following specification and claims.

In the accompanying drawings, which form part of this specification, Figure 1 represents a top plan view of my invention; Fig. 2, a side view, partly in section; Fig. 3, a transverse section on line 3 3, Fig. 1, through the clamp which engages the stationary wrench; Fig. 4, a side elevation of part of the bar or track and said clamp; Fig. 5, a transverse section through the fixed clamp at the front end of the motor; Fig. 6, a side elevation showing the front end of the motor, part of the bar or track, and said clamp; Fig.7, a top plan view of the front end of the motor; Fig. 8, a transverse section on the line 8 8, Fig. 1, showing the universal joint on which the motor-cylinder is supported; Fig. 9, a perspective showing the front sliding clamp to which the movable wrench is attached; Fig. 10, a sectional view showing the hook which engages the lever of the wrench swiveled in a swiveled bar in said clamp, and Fig. 11 a perspective of a sliding clamp.

Reference being had to the drawings and the letters thereon, Aindicates a bar or track of metal in the form of a railroad-rail having the usual head or tread a, web b, and flanges c a, bent into a segment of a circle, and is placed on the floor of a derrick concentric with the bore or casing of the well and the drill-tools.

B indicates the drill-rod, and d the joint of the usual construction; 0, the stationary wrench, whose arm or lever e engages a hook f on a clamp D, secured to the bar or track A, and E the movable wrench, whose arm or lever gengages aswiveled hook h on the sliding clamp F, which is connected to the movable rod t', attached to the piston (not shown) of a hydraulic or other motor G, operated by a lever is on the principle of a h ydraulic pulling-jack.

In the web Z) of the bar or rail A are holes Z, properly spaced to secure the clamps D and H by a pin m on the side at of each clamp, the two parts 02 and 0 being secured together to clamp the rail by a locking-key p, which passes through said parts and is provided on its inner end with a projection g, which engages the outer surface of the part 0, as shown in Figs. 3 and 5, the key being turned by its handle 4' to revolve in the openings in the parts a and 0. The opening or passage 8 in part 11. is cylindrical, while the opening 15 in part0 is in the form of a slot to allowthe projection q to pass through it.

The clamp His applied to the bar A at one end of the motor G, with its lug u projecting over the flange 12, extending outward from the end of the motor. The flange '0 is widened at its outer end to admit of lateral movement of the motor in traveling on the curved track, and between the lug u and the flange '0 one or more friction-balls 4) may be inserted, as shown in Figs. 6 and 7.

The motor rests upon a universal bearing to admit of swinging as the motor is moved along on the track, and the ball to of the bearing is formed on the upper surface of a saddle I, which engages the rail A and slides freely thereon, while the seat 1 of the bearing is formed in a two-part piece of metal a, bolted to the body of the motor. I

The hook h of the clamp F is swiveled in the bar I), which bar is swiveled in the sides of the clamp, as shown in Figs. 9 and 10, so that the hook can accommodate itself to the angle of the lever g of wrench E as the clamp F is drawn in toward the motor by the rod 2.

To couple the joints of a drill-rod, the rod 0; is drawn out to its full length and the hook h on the clamp E engaged with the arm or lever g of wrench E, when the motor G is op erated by means of the lever and the piston of the motor forced toward the rear end of the motor, by which motion the-rod 11 and the clamp F with the wrench-lever g are drawn toward the motor.

To uncouple the joints, the wrenches are reversed in their relation to the drill-rod, the wrench 0 being applied to the upper section and the wrench F to the lower section and the motor G then operated as in the former application of its power.

That the operator may know the degree of power the motor is exerting a gage L may be applied to indicate the pressure of the fluid in the motor, and on the casing of the motor is a table M to indicate the degree of pressure to be applied to set up different-sized couplings.

It isobvious that the motor may be ap plied to push the wrench F by placing said wrench in rear of the clamp L and the lever g of the wrench on the opposite side and the lever pushed toward lever e of Wrench 0. In pushing the clamp L the rod b enters the socket c in the head of the clamp L, and the clamp slides along on the track A.

Having thus fully described my invention, what I claim is 1. The combination of a bar or track, a wrench held stationary thereon, a movable wrench and a motor secured to said track to turn laterally thereon, and attached to the movable wrench.

2. The combination of a bar or track, a fixed and a movable wrench connected thereto and a motor movable on and detachably secured to said track and attached to said movable wrench by a swiveled connection.

3. The combination of a bar or track, a wrench held stationary thereon, a movable wrench, and a motor mounted on the track to turn laterally thereon and having a movable rod connected to the lever of said movable wrench by a swiveled connection.

4. The combination of a bar or track, a wrench held stationary thereon, an adjustable clamp engaging the lever of said wrench, and secured to the track, a movable wrench, a

movable clamp provided with a swiveled connection engaging said wrench and a motor connected to said clamp.

5. The combination of a bar or track, a stationary wrench, a movable wrench, a motor connected to said track by a swiveled joint and connected to said movable wrench.

6. The combination of a bar or track, a stationary and a movable wrench, a motor connected to said track to move laterally and longitudinally thereon and to said movable wrench and a clamp engaging the track and the front end of the motor.

7. The combination of a bar or track, a

' stationary and a movable wrench, a motorengaging said movable wrench, a swiveled connection between the motor and the track and aclamp attached to said track and engaging the front end of the motor.

8. The combination of a bar or track, a stationary wrench, a clamp movable on the track havinga member engaging said wrench, means for securing the clamp to the track, a movable wrench, a movable clamp connecting said wrench to said track and a motor connected to said movable wrench by a swiveled connection.

9. The combination of a bar or track, a stationary and a movable wrench, a clamp provided with a swiveled hook engaging the .lever of said movable wrench and movabl-y connected to said track, and a motor for operating said movable wrench.

10. The combination of a bar'or track having a perforated web, a clamp engaging said track and secured to said web, a stationary v wrench engaging said clamp, a movable clamp engaging the head and web of the track, a movable wrench connected to said movable clamp by a swiveled connection and a motor connected to the track and to the movable wrench.

In testimony whereof I aflix my signature in presence of two witnesses.

LAXVSON E. BRAOKNEY. lVitnesses:

D. O. REINOHL, I). W. REINoHL. 

